o first principles,
and take nobody's word about them.--_Bolingbroke._

Sorrow is knowledge; they who know the most must mourn the deepest o'er
the fatal truth; the tree of knowledge is not that of life.--_Byron._

The seeds of knowledge maybe planted in solitude, but must be cultivated
in public.--_Johnson._

Knowledge dwells in heads replete with thoughts of other men; Wisdom, in
minds attentive to their own.--_Cowper._

It is the glorious prerogative of the empire of knowledge, that what it
gains it never loses. On the contrary, it increases by the multiple of
its own power; all its ends become means; all its attainments helps to
new conquests.--_Daniel Webster._

The love of knowledge in a young mind is almost a warrant against the
infirm excitement of passions and vices.--_Beecher._

There is nothing so minute, or inconsiderable, that I would not rather
know it than not.--_Johnson._

We always know everything when it serves no purpose, and when the seal
of the irreparable has been set upon events.--_Theophile Gautier._

All the knowledge that we mortals can acquire is not knowledge positive,
but knowledge comparative, and subject to the errors and passions of
humanity.--_Bulwer-Lytton._

L.

~Labor.~--Labor is the divine law of our existence; repose is desertion
and suicide.--_Mazzini._

Labor is life: from the inmost heart of the worker rises his God-given
force, the sacred celestial life-essence breathed into him by Almighty
God!--_Carlyle._

The fact is nothing comes; at least nothing good. All has to be
fetched.--_Charles Buxton._

Genius begins great works, labor alone finishes them.--_Joubert._

As steady application to work is the healthiest training for every
individual, so is it the best discipline of a state. Honorable industry
always travels the same road with enjoyment and duty, and progress is
altogether impossible without it.--_Samuel Smiles._

Nature is just towards men. It recompenses them for their sufferings; it
renders them laborious, because to the greatest toils it attaches the
greatest rewards.--_Montesquieu._

Virtue's guard is Labor, ease her sleep.--_Tasso._

Alexander the Great, reflecting on his friends degenerating into sloth
and luxury, told them that it was a most slavish thing to luxuriate, and
a most royal thing to labor.--_Barrow._

Many young painters would never have taken their pencils in hand if they
could have felt, known, and understood, early enough,